Coking-oven.



M. MARSHALL, Sn.

COKiNG OVEN,

APPucATxoN mso omis. me.

M. MARSHALL, Sn

COKING OVEN,

APPLICATIQN m50 Dsc. 13, 1916.

iNvENToR MarJa Z Z r,

I To all wlomit concern:

UNITED fsTaTEs PATENT oEEIcE.

IATTEEW MARSHALL, SR., 0F VANCOUVER, BRITISH COLUMBIA, CADA.

COKING-OVEN.

Be it known that I, MATTHEW Sr., a citizen of the Dominion of Canada, residing at Vancouver, in `:the Province of British Columbia, Canada, have invented certainnew and useful Improvements in Coking-vens,"of which the ,following isa specification.

This invention' relatesy to anfiimprovement in a coal coking oven, the improvements being particularly directed to amcans for recovering all available 'by-pducts from the volatileI matter of the coal, without reducing the quantity or impairing the quality of the cokeproduced. i

This object is attained by` providing the floor of the oven with uniformly distributed apertures through which the volatile matter given olf from the coal by the heat may be drawn ,for delivery to the condensers, etc., and by aprovision by which any 'dust or solid matter that may passy through the floor A apertures is trapped in channels, access to which is obtained for purposes *of removalthrough closable apertures in the front of the oven.

The invention is particularly demribed, in the followingspecication, reference being made to the drawings by which itis accom panied,l in which: i v

Figure lis a vertical section on the line y 1 1 in Eig. 2.

Fig. 2 is aplan yon the line 2--2 in Figxl i. with parts of the floor bricks removed.

Fig. 3 is a vertical Sectibn on the line 3-3 in Fig. 2, and

Fig. is a cross section and perspective i view of the Hoor of the coke oven showing the construction of the parallel apertures and channels therein through which the voly atile matter from the coal passes from the oven to the'place of condensation.

In these drawings 2 represents the firebrick lined dome structure of the walls and roof; 3V beingthe closable aperture in the the wall ofthe oven the subfloor 8, conv Speciation of Letters Patent. A

MARSHALL, l

4Paternal May 22, 1911'.

' Application tiled Deizember 18, 1916. Serial No. 186,612.

structed of fire-brick, drops 'vertically for" 'abopt eighteen inches and therefrom slopes' gonlcally to a central Well aperture 9 which- 'is coveredv with a grating 10 and from which- --a branch pipe 12 closable with a stop-cock 12X leads to the condensers in which the byproducts are recovered.

The conical space within the sub-floor 8 is filled and packed with heavy gravel or rock of a slz'e about two inches, and on the upper surface of this gravel {ire-brick tiles 15 are y laid 1n parallel rows toward the side of the oven in which is the side door with an interspace of about three inches betweenv each row of tiles. These tiles 15- are bedded on' fire-clay on the surface ofthe heavy gravel to insure a uniformly plane surface, the

plane being sloped toward the side door at.l

the grade of the floor level 6. Along the side4 edges of these tiles 15 lire-bricks 16 are bedded and jointed with 're-claynhe upper?A sldes of the bucks being checked, as atl?,

for a reason'fwhich will be explained' later, and along-the middle of each row of tiles '15'*v 'between the rows 16, tire-bricks 18 are bedded and jointed, which bricks are without.`y

j checks' on their upper sides. The space bei-ff tween the adjacent brickslt, that is, between each row offtiles is filled with coarse gravel to the level of the checks 17.y

Resting on the upper sides of the bricks 16 are tire-bricks 20, the'width of the bricks,

yond or loverlap the outsides-of the bricks 16. that are located beneath the bricks 20;,

-20 being such that they extend slightly beef)hv 90.

Land resting on each middle row.A of bricks 18 is a row of'bricks21, the middle of each ,l

sideof which for a depth of about two-f?- spaces between themfand the bricks 20, and'l therebeneath the sides `of these bricks f are beveled inward` as at 23 to near where they seat upon the bricks 18A.

These bricks 20 and 21 form the floor of the fcoke oven which is therefore provided with parallel interspaces 22 through which the volatile matterV from the coal being tacked may freely pass into the tra-p channels 19 between the rows of bricks 16 and 18-and therefrom through the checks 17 into. the

@gravel filled interspaces and through the gravel filled conical space of the sub-floor 8 to the central well 9, to .be conducted through the pipe 12 to th condensers.

The trap channels 19 of eachrow oftiles are toward the front of the oven connected inches is checkered as at 22 to form inter'-` ,pliceioin hut the essentialfixtures of i'he ogeher as at 25 and each connected pair provided vvi'nh e seperele closfihle cover plaie 26 'Si'nough which any zn'icninnhition of dust, etc., trppcd in ille cininnels may he periodically Withdrawn.

ln the roof of the oven shove the uptake liue 4 :i steam injector :274' is inserted und is ohliquely directed downwnrd, that its ict nmy not directly inipinge on the surface oi the charge.

ln use, Che oven is charged thro n jh 'lle cenreil :ipcrtiire f, co :x depi'h oi.E ziho it three i'cct or to lie :1 pproxinndc level oi' the upper side of lie side door opening 5 which Way is closed, preferably hy lnficking` it up. rThe churgje being kindled ou ihc nl) ici-V izicelnb the side door the drnii, i, l linken lihrouggh hc uptake liuc l und 'hc lire is :illoived 'ro silncud over the ywhole upper sin Jfaceo'li the charge. until it attains :i red flow. Thcresifier he uptake liuc is closed und n, drzi'lit is induced, in uny well-known \v through thc gris delivery pipe l2, und this down draft is assisted hy :i stream of nir und steam :it the injecor 27.

The herd; 'from the upper strain of che charge is thus drawn downward through if; the uniform distribution of lhc inici-s nur ing apertures of the floor G und ihc coniczd forni of the snlrrioor 8 insuring' the nni form distribution of the down drziiil' t .rougli the Whole sui-'lime of the charge. The vole- 'tile nini-ici" from the coul7 releused by he heut, posses :is before described into `he trap channels l?) and therefrom hrouggh he checks 1T :ind through ihe gravel in the conical splice between the lfloor (i :ind the Sub-floor S, and is delivered through l'he pipe 1&2 to lle necessary condensers, washers sind scruhhers, und the residual carhureeci hydrogen may he utilized `for the generation of steam in any convenient nninncr for che operacion or' lihe coking plant.

lilith this construction of oven the quzdiiu'y and quanil/y of the coke produced iniproved and all available condensulile residues recovered as byproducts.

As in all coking ovens, much of the success Vith this one depends on the supervision and attention to details in ulie'regiilzifion of the draft whereby ille -vehilile ele-v ments are expeditiously removed with :i minimum of combustion. These details, however, can form no pnr of the pzien in i' i rst invention lie in the conical forni olf he snh-llicor 8, in the manner oi" supposing ehe oren door G thereupon, in the unih'iriniy distributed apertures of 'che nniin 'liner 3 sind in 'he manner of napping these ener un' eo avoid :iccnninlzii'ion of dnsl and. dir @instructing the free passage :ind '-lzhe provisinn for convenien'ly cleaning our, *bhe rep channels.

do not desire 'be he Confined Je ehe :i .semen iculer forni of fireoricks use-d in the con strncion of the iieor und iis lriiii'chfulnels, :is sei lioril in thc foregoing descripion and illuslgru'id in l oi" the drawings, although l' believe *chui io be "Lhc simplest and cheapesi nninner of ntniningi lhe dcsircd resulty nor to the :ipiliiciition of the sinne solely to he hee-hive 'lorin ol ovcn.

The essentiel lfeiinres oi the iiivcntiiou, *which :ire believed io he novel und on which ihe protection of ileers Pnen is desired, are fully scrJ 'Forth in the following claims.

Claims: l. il coke own having :i chui-ging :iper ture in he rroivin in upl'nkc liuc :md :i doorivuy rhrongh which the clmrgc of coke muy he :vi'hilruxvin smid ovcn having' :i door of ire-hri4 -k ivih uniformly disirihiuicd inter spaces heirecn hc brick:` :i spur/e lwnen'h the i'loor :i peruiciihlc filiiiw in sind sgmcc Forming; suppor: for the nrc-luicks, :1nd

means for cl'mnm'l'in;l sziiil space beneath ihe floor ln'icks lo 1i pipe delivering;v io the condcnsers.

i2. ii, coke oven of the class described hzivine; :i sniifloer which is depressed iownrd u central aperture delivering io the condenscrs.y :i gratin over the central aperture, :1 perillinigivihin ihe depression, u` loor oi fire-brick supported on the pcrmezihic filling, seid iioor iniving inici-spaces het-Ween ihe hricks through which the volatile consituents of the coal given oil duringI cokingg muy he ind need to liow and pass through 'the permeablefilling to lie condensers.

A coke oven of izhe class described hei/- ing,- n sub-licor which is depressed *coward :i cenrnl aperture deliverirn to he condenser-s, :i grating over `the central aperture, :i permeable filling Within the depression, :i ioor of fire-brick supported on the pern'ienhle lill- 'ingA` lihcf bricks of said. floor being' arranged in imrzililel iovfs toward the front of the oren und jjircvided vviih inerspnces hel'ween the bricks of each row, saidA floor having' also crap channels hcnen'h earch row of inter spaces, which channels are produced toward the front of the oven and are closnhle ci', the from end with cover nietes, the mills oi said channels being provided with passages in their nppcr part through which the volatile elements given of? hy the coal during I @cking rosy he induced to pass from the channels lihrfuggh the perinczihlc filling' to ehe condensersl f ,fr coke oven oil 1he class described hav ing si. sulrl'ioor which is sloped from iuiiocent the ivfills o :i ccn'ral npernrc delivering' o he coi'ificnsere, :i grating over centriil epe/rieure. perineehlc filling; within lie sloped d' ircsslon oi.: the snlriloor, lire-brick giles resting on the hernie-chie filling; und urin peinlig. fin-rs chreccd toward iche 'iront of he c 'en en iniierggnce he'iwcen icl nies having two l il parallel channels which are connected tol ducts which pass through the front of the oven and are closable at the front end with cover plates, the outer wall of each channel being provided with passages connecting it with the interspace between the rows of tiles, and a floor of iire-brick arranged in rows and supported'on the walls of the channels withv interspaces between the rows immediately over the channels whereby the lvolatile Constituents of the coal given off during coking maybe induced to iow through the interspaces of the main fioor into the channels and therefrom into the interspaces between 'the rows of floor-supporting tiles Aand through the permeable filling to the central delivery outlet to the condensers.

`5. ln a coke oven of the class described having a snb-foorthat is depressed from adjacent the walls of the oven toa central aperture delivering to thevoondensers, a grating over the central aperture, apermeable filling within the depression adapted to support the main floor of the oven, 'rows of fire-brick tiles supported on the permeable filling of the depression in parallel rows toward'l the front of the voven` with an interspace between each row, a' row of fire-bricks alon the edges of each row of tiles and a row o? fire-brick along the middle of each row of tiles 'forming two channels along each row, ywhich channels'join together and are produced as a duct through the front of the oven and are y closable at the front end with cover plates,

the lire-bricks along the edgesof each row ofto connect the channels to the interspaces between their supporting tiles, and a floor of fire-brick arranged in rows to correspond v with those of the supporting bricks and having interspaces between the rowsvover the y channels whereby theyolatile constituents of V MATTHEW MARSHALL, sem.

tiles being checked across the upper surface A 

